NXP Semiconductors
UMxxxxx
Install Guide
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Preliminary 1
— September 6, 2013
© NXP B.V. 2013. All rights reserved.
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linked together by wire jumper the pull-up resistors on each Bus are effectively in parallel. The
resulting value is therefore one half of the original value. Pull-up resistors of low value will overload the
I2C drivers, and effectively stop the bus from operating.
5.6.1
Linking both Busses together (with a jumper)
Fig 5.25 Port E with wire jumper
5.6.2
Linking both Busses together (with a Bus Buffer Board)
Fig 5.26 Port E with Bus Buffer Card (OM13398) installed
5.7
Tester Connectors (for third-party tools)
Bus1 may be connected to third party test equipment via CN17. Bus2 has a similar and independent
connection at CN18. See figure 5.27, figure 28 and figure 29.
Note: Refer to section 9 “Third Party Tools” of this User manual.
Summary of Contents for OM13260
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